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"""module contains code integration correlation implemented in rust here
https://github.com/Alexanderlacuna/correlation_rust
"""
import subprocess
import json
import os
from typing import Optional
from gn3.computations.qtlreaper import create_output_directory
from gn3.random import random_string
from gn3.settings import CORRELATION_COMMAND
from gn3.settings import TMPDIR
def generate_input_files(dataset: list[str],
output_dir: str = TMPDIR) -> tuple[str, str]:
"""function generates outputfiles and inputfiles"""
tmp_dir = f"{output_dir}/correlation"
create_output_directory(tmp_dir)
tmp_file = os.path.join(tmp_dir, f"{random_string(10)}.txt")
with open(tmp_file, "w", encoding="utf-8") as file_writer:
file_writer.write("\n".join(dataset))
return (tmp_dir, tmp_file)
def generate_json_file(tmp_dir, tmp_file,
method, delimiter, x_vals) -> tuple[str, str]:
"""generating json input file required by cargo"""
tmp_json_file = os.path.join(tmp_dir, f"{random_string(10)}.json")
output_file = os.path.join(tmp_dir, f"{random_string(10)}.txt")
correlation_args = {
"method": method,
"file_path": tmp_file,
"x_vals": x_vals,
"sample_values": "bxd1",
"output_file": output_file,
"file_delimiter": delimiter
}
with open(tmp_json_file, "w", encoding="utf-8") as outputfile:
json.dump(correlation_args, outputfile)
return (output_file, tmp_json_file)
def run_correlation(dataset, trait_vals:
str,
method: str,
delimiter: str):
"""entry function to call rust correlation"""
(tmp_dir, tmp_file) = generate_input_files(dataset)
(output_file, json_file) = generate_json_file(tmp_dir=tmp_dir,
tmp_file=tmp_file,
method=method,
delimiter=delimiter,
x_vals=trait_vals)
command_list = [CORRELATION_COMMAND, json_file, TMPDIR]
subprocess.run(command_list, check=True)
results = parse_correlation_output(output_file, 500)
return results
def parse_correlation_output(result_file: str, top_n: int = 500) -> list[dict]:
"""parse file output """
corr_results = []
with open(result_file, "r", encoding="utf-8") as file_reader:
lines = [next(file_reader) for x in range(top_n)]
for line in lines:
(trait_name, corr_coeff, p_val) = line.rstrip().split(",")
corr_data = {
"num_overlap": 00, # to be later fixed
"corr_coefficient": corr_coeff,
"p_value": p_val
}
corr_results.append({trait_name: corr_data})
return corr_results
def get_samples(all_samples: dict[str, str],
base_samples: list[str],
excluded: list[str]):
"""filter null samples and excluded samples"""
data = {}
if base_samples:
fls = [
sm for sm in base_samples if sm not in excluded]
for sample in fls:
if sample in all_samples:
smp_val = all_samples[sample].strip()
if smp_val.lower() != "x":
data[sample] = float(smp_val)
return data
return({key: float(val.strip()) for (key, val) in all_samples.items()
if key not in excluded and val.lower().strip() != "x"})
def get_sample_corr_data(sample_type: str,
all_samples: dict[str, str],
dataset_samples: list[str]) -> dict[str, str]:
"""dependeing on the sample_type fetch the correct sample data """
if sample_type == "samples_primary":
data = get_samples(all_samples=all_samples,
base_samples=dataset_samples, excluded=[])
elif sample_type == "samples_other":
data = get_samples(
all_samples=all_samples,
base_samples=[],
excluded=dataset_samples)
else:
data = get_samples(
all_samples=all_samples, base_samples=[], excluded=[])
return data
def parse_tissue_corr_data(symbol_name: str,
symbol_dict: dict[list[str, list[str]]],
dataset_symbols: dict[str, str],
dataset_vals: dict[str, list[str, str]]):
if symbol_name and symbol_name.lower() in symbol_dict:
x_vals = ",".join([str(val)
for val in symbol_dict[symbol_name.lower()]])
data = []
for (trait, symbol) in dataset_symbols.items():
try:
corr_vals = dataset_vals.get(symbol.lower())
if corr_vals:
corr_vals = [str(trait)] + corr_vals
data.append(",".join([str(x) for x in corr_vals]))
except Exception as e:
pass
return (x_vals, data)
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